Movable mount for drilling machines



E. PENBERTHY MOVABLE MOUNT FOR DRILLING MACHINES Aug, 17 1926.

Filed July 2, 1923 3 Sheets-Sheet 1 KW .0 r cN mfi a m m VI M 5 1 ATTORNE Y} Aug. 17 1926. 1,596,508

E. PENBERTHY MOVABLE MOUNT FOR DRILLING MACHINES Filed July 2, 1923 s Sheets-Sheet 2 Ernest Penberihy INVEIV-TOR BY w 06% M ATTORNEY Aug. 17 1926.

E. PENB ERTHY MOVABLE NlOUN'I FOR DRILLING MACHINES Filed July 2, 1923 m 0 ho E t .TLT N TN. H h &E O. 4% DV 7 m mT e A m P Petented Aug. 1?, 1 92 5.

mm stares 1,596,508 PATENT OFFICE- nran'nsr PENBERTHY, or nnrnorr, ICHIGAN, AssIeNoR TO CHICAGO PNnUMArro TOOL COMPANY, on NEW YORK, n. Y., A oonPoRArIoN on NEW JERSEY.

EZOVAIBLEMOUNT FOR DRILLING'IEACHIN ES.

Application filed 'J'u1y'2,

Among the objects of the invention'are to ovide a slmple but strong device or the class described whiclrwill permit a sinker type of roc l drilling machine to be used as a drifter type, which provides for quick attachment and detachment of such machine without the necessity of disturbing in any respectthe assembly of the parts of the machine and without providing the casing of th machine with special fittings or at achments, to hold the machine against undesirable relative movement when 1nount-' -5 upon the device, and in general to improve p-ior devices and to render them more ei eient, convenient and satisfactory in service.

In order to illustrate the invention, typie c"l species of the genus constituting the vent-ion are shown by way of example in the accompanying drawings, in which;

Fig. 1 is aplan view of a slide mounting ez'noooyi the features of the invention;

' 2 is scale of th cradle shown in Fig. 1 with a iliing machine mounted thereon, the supporting framebeing largely cut away;

Fig. 3 is a right end elevational view of it shown in Fig. 2 with the support 9 in section;

me in section; Fig. 5 is a side elevational view similar Fig. with the supporting irame ento tirely omitted and disclosing a modified form of cradle;

b 6 is aplan vlew or" the cradle shown in Fig. 5 with the through bolts and han dle yoke of a drilling machine indicated by dot and dash lines;

Fig. 7 is an end elevatlonal view of Fig.

5 with the cylinder and through bolts of the drilling machine in section; and

Figs. 8 and 9 are elevational views sinna side elevation on an enlarged is a left end elevational view of 1923. Serial No. 648,859.

lar to Fig. 7 showing modified attaching means at tne front of the cradle.

The embodiments of the invention chosen for th purpose of. illustration are designed and adapted for use with any of the commonly used makes of the hand type of rock.

drilling machines ordinarily used in sinker 'operations to adapt the sameior use in drifting. Such a machine is illustrated in Figs; .2 and 5 and indicated by the reference character A. Thistype of drill. is ordinarily provided with through or side belts B which extend through projections on the sides of the drill casing, such as the perforated lugs C, and serve to retain the parts oi the drill in assembled relationship, the heads B" of the through bolts in the form shown being in abutting contactwith the handle yoke D of the drill. Guide projections or lugs E on the drill cylindercoopmate with the bolts B to retain the parts of the drilling machin in alignment. Since the drilling machine itself vforms no part of the present invention, further description thereof is omitted. Thesupporting frame of the feeding device illustrated 1n Fig. 1 and partially 111.

' bearings 13 the feed screw 14; extending between side mlembers 10 and which may be.

rotated by suitable means such as the crank handle15.

Theform of the slid or cradle proper illustrated in Figs. 1 to 5 inclusive upon which the drilling machine is mounted for movement. longitudinally of the supporting frame above described, is provided with laterally extended. flanges 17 which fit into the guide grooves 11 of members 10. A threaded nut or bushing 18 secured in a bore 19 in,

a depending extension 20 of the cradle, serves as the means whereby the cradle is moved when the feed screw 14 is rotated, the nut- 18 being held in place by an enlarged head 18 thereon at one end and a lock nut 18? at theother.

The cradle serves as th movable support for the drilling machine and is provided adjacent its ends with meansfor securing the machine in place. At its front or left end'cradle- 16 has'a loop or strap 21 of a size to permit the forward end of the drilling machine to be passed therethrough. This loop 21 as shown and by preference is integral with the cradle. At the rear, the cradle is provided with transversely aligned upwardly and outwardly diverging rms 22 adapted to be disposed between arms D of the handle yoke D of the drilling machine when the latter is in position upon the cradle. Theforward faces of the arms are provided with recesses or sockets 23 in wiich the heads B of the through bolts B are adapted to seat and to be positively retained-therein by suitable means such as movable clamping jaws in the-form of offset heads 24 of bolts 25 mounted in vertical bores in the arms 22. By. setting up the nuts 26 on bolts 25, the clamping jaws 24 will clamp the through bolt heads B against the fixed clamping jaws formed by the bottoms of the recesses 23.

'W'hen the cradle mounting is not in use, the rotatable clamping jaws 24 are turned inwardly toward each other or rearwardly as indicated by broken lines in Fig. 5. In mounting a drilling machine thereon, such as A, the front of the same is passed endwise through the loop 21 until the forward guide lugs E or similar projections contact the loop. The rear of the machine is then dropped into place with the arms D of the handle yoke on either side of the arms 22 of the cradle and with the through bolt heads B seated in the sockets 23. The rotatable clamping heads 24 are then swung to operative position above the bolt heads B and are set up by tightening nuts 26, whereupon the mounting of the machine A is completed andthe same is ready for use.

In the modifications of the invention, disclosed in Figs. 5 to 9 inclusive, the engaging means for the rear of the drill are exactly the same as those shown in the first modification disclosed in Figs. 1 to 4, and for this reason the same reference characters are used to indicate the same parts. Inthe form shown in Figs. 5, 6, and 7, the forward or left end of the cradle 16' has upwardly disposed outwardly diverging arms 30 somewhat similar to arms 22 at the rear of the cradle. Arms 30, however, are shaped on their inner faces to conform substantially to the contour of the cylinder of the drilling machine, Fig. 7, and are formed with recesses 31 receiving the through bolts B and with sockets or recesses 32, Fig. 6, in which one of the forward guide lugs or projections E on each side of the machine is adapted to seat. A separate retainer 33 generally U- shaped in form cooperates with arms 30 to retain the front of the machine in place. This retainer has parallel threaded ends 34 extending through vertical bores in those portions of the arms 30 which project lat the bolt heads B at the rear of the machine and the bolts B near the front.

Figs. 8 and 9 show alternative ways of securing the front of the machine to the cradle with any desired degree of rigidity. In Fig. 8 the forward engaging means on the cradle 16 comprises a yoke 36 hinged at 37 to bolt 38 in the vertical bore of one of the arms 30 and adapted to be held or locked in clamping engagement by headed bolt 39 in the vertical bore of the other arm 30 of the cradle by a nut 40 which serves to tighten or release the yoke 36. In this form of the invention, the arms 30 of the cradle and the hinged yoke 36 are arranged to fit the cylinder of the drilling machine as well as to engage the through bolts B.

In Fig. 9 the cradle 16 has arms 30 in all respects similar to the arms'30 of Fig. 8. The vertical bores in these arms, however, are provided respectively with an eye bolt 42 and a hook bolt 43, each having nuts for setting up the same Between the eye of bolt 42 and the hook of bolt 43 extends a flexible connection such as a chain 44 which engages the cylinder of the drilling machine to retain it in place.

To mount a drilling machine onthe cradle disclosed in Figs. 5 to 9 inclusive, it is necessary to displace the forward retaining means so that the drilling machine may be lowered into place while held parallel with the cradle. This permits the bolt heads B to drop into recesses 23, the forward portions of the through bolts B into the recesses 31 in the arms 30, and the lower forward guide projections E into the sockets 32. The upper retaining member at the front is then moved into place, the U retainer 33 by passing the parallel ends 34 thereof through the cooperating bores in arms 30 and setting up the nuts 35, the hinged yoke 36 of Fig. 8 by swinging it into position and then applying and setting up nut 40, and the chain 44 of Fig. 9 by slipping it over hook 43 and then tightening up the nut on either the eye bolt 44, the hook bolt 43, or both. The rear of the drilling machine is made fast in the manner described in relation to the form of the invention shown in Figs. 1 to 4.

in the form; of the invention first described the front end of the drilling machine is loosely held in the loop 21, which i ill) permits the drilling machine to be removed with ease and speed since itis only necessary to loosen and swing the oflset clampheads 24 out of positionto permit the rear of the drill to lie-raised and the frontto be pulled outof loop 521. This loose mounting of the drill at the front has the 4 further advantage of largely, if not entireatmoly, chi .Y side stresses on the mounting which result when crooked drill steels must be used or when crooked drill holes are en-- coun'i'fei'ed, a not infrequent occurrence in the actual practice of rock drilling. .Lateral motion of the rear end of the drilling ma- I chine is permitted by the slight amount of forward guide lugs E of the drill, such as the loop 521 in the first form of the invention and the sides of the sockets 82 in the modified forms. The constructions illustratet in Figs. 8 and 9 provide for rigidly holding the drilling machine, While in the form shown in Figs. 5 to 7, wherein the machine is secured to the cradle by means of its side rods alone, a slight yielding of the drill in response to drilling conditions is possible dependent upon the resiliency of the through bolts B.

From the above it Will be apparent that the device herein disclosed is adapted for the quick attaching or detaching of drilling machines and the like that in using this device it is unnecessary to disturb in any de EllilijGVGl the assembly of the parts of themachine mounted thereon, that the machine is securely held for the purpose desired but play to limited extent may be provided, and that various changes may be made in the form and arrangement of the parts to adapt the device to conditions of use and to various sizes and types of machines without departing from the inventive idea herein. disclosed.

l claim:

1. The combination With a rock drilling machine having rearwardly projecting bolt head, of feeding device comprising a movable cradle having engaging means for the front of the machine and a recess at the rear of said cradle for receiving said bolt head, and means for retaining said bolt head seated in said recess.

The combination With a drilling machine having a rearwardly projecting bolt head, of a feeding device comprising a movaW the bolt heads B from the recesses. as by the stops Which cooperate with the ole cradle having engaging means for the ont' of the machine and a recess at the of said cradle for receiving said bolt head and clamp ng means movable into and out of op :ativoposition for retaining said bolt head seated in said recess. i V

3. The combination with a rock drilling maehinc havinq rearwardly projecting bolt pleads, a feeding device comprising a movl cradle havin engaging means for the front of the machine to prevent forward movement thereof and recesses at the rear of said cradle for receiving said bolt heads,

and clamping means movable into and out of operative position for retaining said bolt heads seated in said recesses.

The combination Witha rock machine having rearwardly projecting bolt heads, of a feeding device comprising a *novable cradle having engaging means for front ofthe machine to prevent forward vement thereof and recesses at the rear 0 ant Clflllllllg aws rotatable into position seated in said recesses.

0. he combination with a rock drllling machine having through bolts, of a feeding (le -rice comprising a movable cradle having cramping through bolts of the machine to hold the machine upon the cradle.

6; in a device of con'ibination asupporting frame, a cradle thereon, means for moving the cradle reladrilling said cradle for receiving said bolt heads. 1

at ve said bolt heads for retaining the latter means arranged to engage the the class described,

ill)

tive to the frame, means at one end of the cradle for engaging a drillingmachine provided with through bolts, and clamping jaws at the other end of the cradle for engaging the through bolts of the macl'iine.

7. In a device of the class. describedin combination asupporting frame, a cradle thereon, means for moving the cradlerelative to the frame, means at the front of the cradle for engaging drilling machine provided with through bolts, and clamping ].,.,.VS at the rear of the cradle for engaging the through bolts of the machine.

S. In a combination a supporting frame, a cradle thereon, means for moving the cradle relative to the frame, and means adjacent the front and rear ofsaid cradle for engaging a drilling machine supported thereon, said rearv ard engaging means fitting within the. handle yoke of said madevice of the class described, in

m no and at each side of said cradle for engaging the through bolts-of the rock drilling machine.

10. In a device of the class described in combination a supporting frame, a cradle thereon, means for moving the cradle relative to the frame and means for detachably mounting a rock drilling machine on said cradle comprising fixed clamping vs at the rear and at each side of said cradle serving as positioning stops for the machine and engaged by the through bolts thereof, and movable clamping jaws associated with said fixed jaws for clamping the through bolts thereto, said movable jaws being rotatable out of operative position to permit quick mounting or removal of the machine.

11. In a device of the class described, a cradle upon which a drilling machine having rearwardly projecting bolt heads is adapted to be detachably mounted, longitudinally spaced supports on said cradle upon which portions of the machine may rest, the rearmost support providing recesses for said bolt heads and means associated with one of said supports for clamping the machine thereto.

12. The combination with a drilling machine having through bolts, of a feeding device comprising a movable 'cradle support-- ing the machine, said cradle having stop members engaging the machine at its front and rear ends and clamping means engaging the through bolts of the machine and associated with at least one of said stop members for securing the machine in place.

13. The combination with a drilling machine having through bolts, of a feeding device comprising a movable cradle supporting the machine, said cradle having a stop member having a forwardly opening recess receiving at least a portion of the rear end of the machine to prevent rearward movement thereof and clamping means engaging the through bolts of the machine adjacent the front end thereof for securing the ma chine in place.

14. In a device of the class described, a cradle upon which a drilling machine having rearwardly projecting bolt heads is adapted to be detachably mounted, longitudinally spaced supports on said cradle upon which portions of the machine may rest, the rear support providing recesses for said bolt heads and the front support providing a stopto prevent forward movement of the machine relative to the cradle, and means for clamping the machine on the cradle.

15. In a. device of the class described, a cradle upon which a drillingmachine is adapted to be detachably mounted, said cradle having laterally extending parts engaged by the tl'irough bolts of the machine and means for clamping said bolts upon said parts.

16. in a device of the class described, a cradle upon wiich a drilling machine is adaptedto be detachably mounted, having clampingjaws arranged to engage respectively'the heads and the intermediate portions of the through boltsof the machine.

17. In a device of the class described, a cradle upon which a drilling machine is adapted to be detachably mounted, having pairs of clamping jaws arranged to engage respectively the heads and the intermediate portions of the throughbolts of the machine, one jaw of each pair being movable out of operative relationship with the other jaw to permit quick mounting or removal of the machine.

18. in a dev'ce of the class described a movable cradle having recesses at one end adapted to receive the heads of the through bolts of a. reel; drilling machine, and clamping means arranged to engage other portions of the through bolts thereby firmly to hold said machine on said cradle while permitting its quick detachment therefrom when desired. I

19. A cradle for supporting a drilling machine having through bolts on a feeding device, the cradle having a stop member arranged to fit within the handle yoke and providing forwardly opening sockets for the heads of the through bolts, and means in spaced relation to said member for clamping the machine to the cradle.

20. i'nachine having through bolts on a feeding device, the cradle having a stop member arranged to fit within the handle yoke and providing forwardly opening sockets for the heads of the through bolts, and clamping means engaging said machine in spaced re lation to said member and serving as a stop against forward movement of said machine.

Signed by me at Detroit, Mich, this 27th day of June, 1923.

' ERNEST PENBERTHY.

A cradle for supporting a drilling 

